Linux

Getting started with Linux: count the number of threads of a process in Linux Problem: I am running a program, which will derive multiple threads at runtime. I want to know how many threads the program will have at runtime. In Linux, what is the

RabbitMQ User Role and permission Control User Role category of RabbitMQ:None, management, policymaker, monitoring, administratorRole description of RabbitMQ:NoneCannot access management pluginManagementYou can do anything through AMQP plus:List

Install the Komodo editor using PPA in Ubuntu The Komodo text editor is very good. Let's take a look at the introduction on the Encyclopedia: Komodo is a free/chargeable, supports multiple languages, and cross-platform (for Windows, Mac OS X, and

Linux development and management commands 1. sync: writes the disk buffer to the disk to prevent sudden power loss. This command is called when Linux is shut down. 2. view and configure Kernel Parameters in sysctl. The Kernel Parameter configuration

Install pip in CentOS Install pip in CentOS Python and Operating System Support Pip works in CPython versions 2.6, 2.7, 3.2, 3.3, 3.4, and pypy. Pip is included in Python Python 2.7.9 and later (in the python2 series), and Python 3.4 and later

Kickstart automatic installation and deployment RHEL 7.0 I. Introduction 1.1 What is PXE PXE (Pre-boot Execution Environment, Pre-start Execution Environment) is the latest technology developed by Intel, working in the Network Mode of Client/Server,

Enable Automatic Ubuntu upgrade Before learning how to enable automatic upgrade for Ubuntu, explain why automatic upgrade is required. By default, ubuntu checks for updates once a day. However, only one software upgrade reminder will pop up once a

Preliminary understanding of SELinux Security Management Today, let's take a look at the next mysterious Security Management SELinux in Linux. Basic concepts of SELinux Security Security Enhanced Linux (SELinux) is an additional system Security

Mhddfs: combines multiple small partitions into a large virtual storage. Let's assume you have a 30 GB movie and you have 3 drives, each of which is 20 GB. So how do you store things? Obviously, you can split your video into two or three different

Github inventory object Algorithm $ Git clone https://github.com/torvalds/linuxCloning into 'linux '...Remote: Counting objects: 4350078, done.Remote: Compressing objects: 100% (4677/4677), done.Grouping objects: 4% (191786/4350078), 78.19 MiB | 8.70

Install Orionode source code in Linux Mint Eclipse-orion is a sub-project under the Eclipse project, orion is an online version of the code editing environment. Its introduction to reference http://wiki.eclipse.org/Orion. Eclipse-orion is developed

Switch gcc, g ++, and gfortran versions in ubuntuStep 1: use which gcc, which g ++, and which gfortran to view the location. My result is/usr/bin/gcc; /usr/bin/g ++ and/usr/bin/gfortran Part 2: first, let's take a look at the gcc commands installed

7 bond modes for linux NICsNow the storage product CSS uses the multi-nic bond6 mode. Here we will share with you the seven bond mode principles of the Multi-NIC: there are seven types of Linux multi-nic binding modes (0 ~ 6) bond0, bond1, bond2,

Socket programming practices in Linux (4) TCP server optimization and common functions Concurrent zombie process Processing When only one process is connected, we can use the following two methods to handle zombie processes:   1) Avoid botnets by

Install the Mind Map software XMind in CentOS7 1. log onto the xmind official website, download the deb installation package: http://www.xmind.net/download/linux/ 2. decompress the Deb package and get two archive files: data.tar.gz and control.tar.

Install and configure mariaDB and phpmyadmin in CentOS7New to linux .. This problem has been finally resolved until now, and it takes one afternoon to add one night to the cinema to watch a movie and have dinner. It still takes a long time. First,

Linux and Xijing ------------------------------------Remaining disk space: df-hl Copy everything in the/home/user1 directory to/root/temp/without copying the user1 directory. Cp-Ri/home/user1/*/root/temp/Copy everything in the/home/user1 directory

Linux Standard Input and Output After linux is started, three file descriptors are opened by default, namely standard input 0, standard output 1, and error output 2. After opening the file. The new file binding descriptor can be added in sequence. A

Semaphores, mutex locks, read/write locks, and conditional variables Semaphores emphasize synchronization between threads (or processes): "semaphores are used for multi-thread and multi-task synchronization. When a thread completes an action, it

Synchronization and mutex1. Basic concepts of deadlock 1.1 Deadlock: a deadlock refers to the state in which multiple threads (processes) concurrently executed in the system are permanently blocked because they cannot obtain the required